ECS65US18 Power Supplies - External/Internal (Off-Board)

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AC/DC converters are devices that convert alternating current (AC) energy into direct current (DC) energy. The ECS65US18 is a line frequency AC/DC converter that can be used in a wide variety of power conversion applications. In this article, we will discuss the application field and working principle of the ECS65US18.

ECS65US18 is a full bridge rectified multi-mode converter. It is the first dedicated AC/DC converter to integrate an isolated full bridge rectifier, secondary side synchronous active-clamp controller, and secondary side quasi-resonant control. It achieves efficient and low-loss power conversion for a variety of power levels from around 5 watts to 12 watts.

The ECS65US18 can be used in a variety of applications from IoT devices to portable electronic devices. It supports the full range of input voltage from AC100V to AC240V and can provide up to 12W of output power, making it ideal for a variety of low-power applications. In addition to providing higher efficiency and lower overall power loss, the ECS65US18 also reduces the audible noise associated with traditional power supplies.

The working principle of the ECS65US18 is quite simple. It uses four external MOSFETs to form a full-bridge rectifier, which converts alternating current into direct current. A Synchronous active-clamp controller and integrated quasi-resonant control circuit are then used to regulate the output current and voltage. Finally, a standard feedback loop is used to set the input voltage, voltage regulation coefficient, and output current.

The ECS65US18 has several advantages over traditional AC/DC converters. It is significantly more efficient than single-stage DC/DC converters, allowing it to reduce power losses and increase overall efficiency. Additionally, the use of an isolated full bridge rectifier and Synchronous active-clamp controller enable low acoustic noise and very high power factor performance. This makes the ECS65US18 ideally suited for modern, low-power applications.

In conclusion, the ECS65US18 is a versatile, efficient, and low-noise AC/DC converter that can be used in a variety of applications, from IoT devices to portable electronic devices. It features an isolated full bridge rectifier, secondary side synchronous active-clamp controller, and secondary side quasi-resonant switchable control. This allows it to provide efficient and low-loss power conversion for a variety of power levels from around 5 watts to 12 watts.

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